- WW Collet Adapter*
- Drawbar & 3/8" Knockout Bar
- Set of 5 Collets: Inch set: 1/16", 1/8", 3/16", 1/4", and 5/16" Metric set: 2.0 mm, 3.0 mm, 4.0 mm, 5.0 mm, and 6.0 mm
- 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4", 17/64", 9/32", 19/64", 5/16"
- 1.5 mm, 2.0 mm, 2.5 mm, 3.0 mm, 3.5 mm, 4.0 mm, 4.5 mm, 5.0 mm, 5.5 mm, 6.0 mm, 6.5 mm, 7.0 mm, 7.5 mm, 8.0 mm
- WW collet adapter*
- Drawbar & 3/8" Knockout Bar
- 3/4" collet pot chuck
- 1" collet pot chuck
- 2 WW collet blanks, large & small head
- 1/8" clamping pin
WW Collet Sets
Collets provide a quick, easy method of mounting cylindrical parts or bar stock in the lathe with a great deal of centering accuracy. Each collet is actually a small, precision 3-jaw chuck that fits into a special tapered adapter in the headstock. A drawbar that passes through the headstock and threads into the backside of the collet is used to draw the collet up into the tapered adapter. The adapter causes the jaws of the collet to close down, gripping the part to be machined. Typically, collets provide a very accurate part mounting system, but each size collet can accommodate only a small range of diameters of approximately ±.001" (.02mm).
WW collets differ from milling collets in that they have a hole all the way through the collet and drawbar. The maximum diameter stock that can pass entirely through the collet is 3/16" or 4.5mm. The WW collets that are larger than this diameter are sometimes referred to as "pot" chucks.The Sherline WW collet set includes a WW style collet taper adapter, a drawbar, and a set of five WW collets. These collets are manufactured by Sherline and are built to standard WW specifications; however, we have come across collets that are called WW and will not fit our drawbar and adapter. Be sure to check WW collets made by other manufacturers to be sure they fit our adapter before you purchase them. Sherline manufactures a slightly larger .315" adapter and drawbar set that will accommodate some of these other brands.
Collet AccuracyThese collets have a maximum runout of .002" or less. If the WW collet adapter is trued in as suggested in the instructions, it will run dead true. This will allow the collet runout to be at its best. Collet sizes above 3/16" (4.5mm), considered pot chucks, are not bored through. They are only bored .260" deep and depending on your setup and length of the part, you may experience greater runout further away from the front of the collet.
5-piece collet set includes:Other Collet Sets
Sherline also offers sets that include a wider selection of collets. It includes 17-inch size collets from 1/16 to 5/16", while the metric set includes 14 metric collets from 1.5 mm to 8.0 mm. These sets come in an oak box with a divider that has extra holes for more collets should you add them later. It also includes a drawbar, a collet adapter, knockout bar, two collet pot chucks, and a collet blank.
The largest set we offer includes 78 collets from 0.3 mm to 8.0 mm by 0.1 mm increments. This comes in an oak box with 96 holes in case you add some inch sizes but does not include the adapter, drawbar or other accessory items in the sets described above.
Deluxe WW Collet Sets
This set contains a complete selection of 17 (14 for the metric set) Sherline WW collets, including a blank, 3/4" and 1" pot chucks with dowel pin, an adapter, drawbar, and a knockout bar. It comes in a high-quality wood box constructed with finger joint corners that has a brass latch and hinges. A machined wood insert locates each part, plus a drawing in the lid reminds you where each piece goes to keep things organized. Extra holes are provided should you want to add additional collets to suit your particular needs. This set is a handsome and useful package for the serious miniature machinist.
Inch Collet Sizes:These collets have a maximum runout of .002" or less. If the WW collet adapter is trued in as suggested in the instructions, it will run dead true. This will allow the collet runout to be at its best. Collet sizes above 3/16" (4.5mm), considered pot chucks, are not bored through. They are only bored .260" deep and depending on your setup and length of the part, you may experience greater runout further away from the front of the collet.
Each set includes:*NOTE: Our WW collet adapter does not have a keyway pin for the collets. Our customers have been using our WW collets on our lathes without a key pin for over forty years without any problems.
REPLACEMENT INSERT CARDS: If you have damaged or lost your insert card, you can download a new one from the Instructions tab above. Then print it out, cut it to size using the crop mark guides, and insert it back into the box lid.
Complete Metric WW Collet Set
The Sherline metric WW collet set contains 77 collets sized from 0.3 mm to 8.0 mm by 0.1 mm increments plus a blank collet that can be made into any size collet by the user. It comes in a finely finished hardwood box with 96 holes, leaving room for other collets should you have extras or inch sizes to store.
Collet AccuracyThese collets have a maximum runout of .002" or less. If the WW collet adapter is trued in as suggested in the instructions, it will run dead true. This will allow the collet runout to be at its best. Collet sizes above 3/16" (4.5mm), considered pot chucks, are not bored through. They are only bored .260" deep and depending on your setup and length of the part, you may experience greater runout further away from the front of the collet.
Sherline manufactures these collets to standard WW specifications; however, we have come across collets that are called WW and will not fit our drawbar and adapter. Be sure to check WW collets made by other manufacturers to be sure they fit our adapter before purchasing them. Sherline manufactures a slightly larger .315" adapter and drawbar set that will accommodate some of these other brands.
Mill Collet Set
Sherline milling collets are specifically designed for use with the Morse #1 internal taper, which is standard on both the Sherline lathe and vertical mill. Due to the shallow angle of the Morse #1 taper, tightening the drawbolt results in significantly greater clamping force compared to WW collets. For this reason, we recommend using these milling collets to securely hold miniature end mills (with 3/16" or 1/4" shanks), #1 and smaller center drills, Dremel® bits (1/8" shank), and a variety of other small cutters.
Inch Mill Collet Set: 1/8", 3/16", 1/4"
Metric Mill Collet Set: 3 mm, 4 mm, 6 mm
Note: Tools held in these collets must have a shank diameter within .001" of the stated size. Because of the shallow taper, the collet will remain tight in the spindle even after loosening the drawbolt. To release it, back the drawbolt out a few turns and tap it lightly to free the collet.
⚠️ CAUTION: When tightening the collet drawbolt with a Tommy bar, be careful not to insert the bar too far into the spindle. Doing so can damage the collet’s taper area. The red arrow in the image below shows an example of this type of damage.
